Porosity and mechanical properties of zirconium ceramics

Journal Article · Fri Nov 14 00:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4901484· OSTI ID:22390408

Kalatur, Ekaterina; Narikovich, Anton ^[1]; Buyakova, Svetlana; Kulkov, Sergey ^[2]

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1. National Research Tomsk State University, Tomsk, 634050, Russia and Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055 (Russian Federation)
2. National Research Tomsk State University, Tomsk, 634050 (Russian Federation)

The article studies the porous ceramics consisting of ultra-fine ZrO{sub 2} powders. The porosity of ceramic samples varied from 15% to 80%. The structure of the ceramic materials had a cellular configuration. The distinctive feature of all experimentally obtained strain diagrams is their nonlinearity at low deformations characterized by the parabolic law. It was shown that the observed nonlinear elasticity for low deformations shown in strain diagrams is due to the mechanical instability of cellular elements of the ceramic framework.

• OSTI ID: 22390408
• Journal Information: AIP Conference Proceedings, Vol. 1623, Issue 1; Conference: International Conference on Physical Mesomechanics of Multilevel Systems 2014, Tomsk (Russian Federation), 3-5 Sep 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
DEFORMATION
ELASTICITY
NONLINEAR PROBLEMS
PARTICLE SIZE
POROSITY
POROUS MATERIALS
STRAINS
ZIRCONIUM
ZIRCONIUM OXIDES